THE PUZZLET PAGE

PUZZLET 005

A Cubic Equation

x 3- x2 - x - 1 = 0
This simple cubic equation is the subject of the Puzzlet

This is a very simple Puzzlet:  find the root of the equation shown above.  To make it even simpler, I can tell you the answer is somewhere in the region of 2.  However, just to make it a little more interesting,  you’re asked to work to 10 decimal places of accuracy …



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Last Updated: January 7th, 2010.